It's possible. I mean we've got Animal Crossing: New Horizons out in March. This is the first time since the Switch's launch that such a huge Nintendo game comes out in the 1st quarter. If Breath of the Wild 2 comes out in 2020, or a yet-to-be-announced Super Mario Odyssey 2, that would help too.
Third party will probably peak in 2020 before the holiday 2020 releases of Project Scarlett and PlayStation 5. Plus long-rumoured Switch hardware revisions will almost certainly start in 2020 at the latest.
And fingers crossed they fix some of their online service and give us a lot of classic games by next year.
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 122 million (was 105 million, then 115 million) Xbox Series X/S: 38 million (was 60 million, then 67 million, then 57 million. then 48 million. then 40 million)
Switch 2: 120 million (was 116 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima